丢丢丢_哈哈哈
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以八个灯接在P2口为例#include <reg52.h> #include<intrins.h>#define unchar unsigned char #define unint unsigned int void DelayMS(unint ms) { unint ab; for(a=0;a<ms;a++) for(b=0; b<113; b++);}void main(void){ unint i; while(1) { P2=0xfe; for(i=0;i<9;i++) { P2=P2<<1; DelayMS(100); } }}